Robyn wasn't sure where she found the willpower to twist away from Doug's hot lips. She stumbled from the shower, tears on her cheeks as she pulled a towel around her nakedness and fled into her bedroom. He caught her wrist and spun her down on the bed. She tried to kick at him, but Doug pushed her feet apart and thrust his mouth against her freshly fucked pussy.
In the shower, Robyn had felt his surging cock grow stiffer and fatter. She'd realized then that she had to stop him. She couldn't let Doug come inside her. It seemed like the final sin, the final taboo broken. Now, though, his mouth was doing even naughtier things to her clit.
She couldn't keep still. Not with his hot tongue rubbing her clit. Not with his breath burning the satin flesh of her pussy. She bucked and whimpered and then threw her knees wider so he could eat all of her!
"Ohhh, damn you, Doug! I wish I had the strength to make you stop."
"Don't you love the way it feels?"
"Yes!"
"Don't you want me to suck your pussy until you come!"
"Yes, Doug! Please do that!" Robyn dug her fingers into her brother's hair and pulled his mouth harder against her. "Ohhh, eat me all up!" She was remembering all too vividly how her friend Julie had enjoyed the own licking she'd gotten from her brother that very afternoon.
"You taste wonderful," Doug groaned, pressing his mouth tightly against her cunt-lips.
When Robyn moved her ass up and down, her cunt was rubbed against her brother's probing tongue. The sharp pleasure took her breath away. She plunged her hips faster than before, crazy for the way the tickle grew more and more intense. It was like an itch that couldn't be scratched enough.
"Ohhh, uhhhbh, Doug, I think I'm gonna come if you keep doing that!"
Her brother's mouth was juicy as it slid against her pussy. She couldn't get enough of the silky rubbing, the probing firmness of his tongue. Suddenly, he was biting her, chewing gingerly on one plump cunt-lip.
"Ahhh, ahhhhhh!" she cried, feeling the razor-sharp thrills begin. Her brother pulled his mouth away then and she felt the weight of his body. His cook pressed against her pussy. Although she knew it was wrong, Robyn could think of only one thing.
"Ohhh, stick it into me! Ohhhhh, Doug, hurry darling! Fuck me, fuck me, fuck me!"
Doug fucked her deeply, drawing his cock back so she could feel the swollen barb gauging into her tight cunt. She squeezed her thighs together, her ass plunging and dancing on the bed. Her brother held her hips and fucked slowly and teasingly.
Robyn was already coming. She'd been about to come when he'd licked her. Now, with his big prick thrusting in and out with tantalizing slowness, she arched her back up sharply from the bed, then humped it down into the mattress again.
Robyn took Doug's cock to the hilt. When his balls bumped her, she knew she had never felt pleasure so intense. His cock-tip was bulging, pulsing, stretching her! His mouth found her mouth and she pushed her tongue eagerly between his teeth. He bit and sucked it, grinding against her clit.
"Fuck me!" Robyn kept babbling. "Don't ever stop fucking me!"
With a shudder, Doug groaned her name and she felt the rippling excitement knife through his body as if their nerves were now joined permanently. His cock jerked inside her. She whimpered, knowing what was happening, but too lost in the fantastic pleasure to stop him.
"Coming!" Doug gasped. "I'm coming so good!"
His ass did a wild dance as he rubbed his spurting cock around inside her velvety soft pussy. She was milking him, her clit exploding now, her muscles pulling at the thick, rich cum as it was forced from his balls.
"Ohhhh, honey!" she cried, biting her brother's shoulder until she tasted blood. He didn't seen to notice the pain. Something much more consuming had taken over his consciousness. He wallowed down against her slim, young body, his chest exciting her nipples, his sweaty belly heaving against hers.
Robyn was dying from ecstasy. She had never enjoyed anything so much in her life. Her ass plunged wildly, her fingers clawing at Doug's back.
She could feel her cunt muscles stripping cum from his prick. She didn't care that he was doing it inside her. She wanted the strange-smelling stuff. She wanted it to stay inside her pussy until her flesh absorbed every drop.
"Ohhhh, Robyn! God, you're tight!"
"Mmmmmm, don't stop, darling! Doug, darling!"
The bed thumped under them as they rolled around. Robyn had bent her knees sharply and pressed the soles of her feet against her brother's muscled ass. She could feel all his movements, feel the strong male thrusting that excited her so tremendously.
"God… ohhh, keep fucking me! Aaahhhh!"
Doug did keep fucking her. He seemed to have quarts of cum to spurt into her cunt. She could still feel his prick-shaft jerking, feel the hot strings of cum that had begun to leak down the crack of her ass.
With both of them shivering, they slowed down their delirious movements and panted hard against each other's necks. Robyn was still too caught up in the frenzied moment to think about right and wrong. She only knew that what had happened to her was better than life itself.
When Doug lifted himself up on his elbows and petted the damp curls away from her face, Robyn couldn't help but smile.
"I guess we did it again, didn't we?"
"God, it was nice! I can't believe how much I like to fuck you."
"I wish I could pretend we weren't related."
"That's what makes it even better," Doug said, his eyes on fire with the excitement he was hinting of. "To fuck you, my own sister, really gets me going."
"It shouldn't! You shouldn't want to even kiss me on the lips!"
Doug kissed her on the lips then, his tongue forcing her to open her jaws until she was kissing him back just as hungrily. Her pussy tightened one or two more times, milking another droplet of cum from his cock.
"You shouldn't have started all this up again," Robyn said when she got her breath again.
"Mom and Dad are coming back tomorrow," Doug said. "They called while you were out."
"You don't think we can go on doing this while they're here, do you?"
"We'll just have to be more careful," Doug laughed.
"No, Doug, we just have to stop. If anybody found out, I think I'd die of shame."
"See, you're more afraid of what people would say than you are of being wrong."
"I know we're wrong. I don't even have to think about it."
They lay there for a long time. Robyn knew they should clean up and try to forget it all again. Yet, it was so comfortable to be held in her brother's arms. He rolled her onto her side and kept nuzzling her shoulder, hie cock still inside her pussy.
Robyn squeezed her pussy muscles to keep him there. She knew she was absorbing all his fresh cum and it gave her a thrill to think of it. When Doug finally pulled his cock free, it looked small and limp. He wiped the cum front it with a towel and lay on his back.
"You know what I'd like now?" he said.
"What?"
"For you to suck me until I'm hard again."
"Doug!" Robyn thrilled, even though she didn't want to consider such a thing. She remembered when she'd watched Julie's red lips melting around the blue tip of her brother's big prick. It made shivers go through her.
"A girl is supposed to like it too," Doug argued.
"Doug, I am not going to suck your cock," Robyn sighed as if to make her decision final.
"I ate your pussy."
She didn't have an answer to this. Doug got onto his hands and knees and crawled up over her so that his prick was dangling down an inch or two from her mouth. She gave him a push and turned her face away. But he just let his cummy cock-head slide along her cheek.
"Please, Robyn, try it. You might dig it."
"What girl in her right mind would dig doing something like that?" Actually, Robyn had been very curious about what it felt like to have something so spongy against her tongue. She squeezed his limp cock between a thumb and finger and looked at it. "It sure isn't very stiff now."
Soft or hard, Doug's cock made her tingle. Boys were so strange. A girl didn't have anything like that hanging from her. She wondered what it felt like for a man when a girl licked his cock. As good as it felt when she had her clit licked, Robyn decided. And that was very, very good indeed.
It was so weird, her brother on his hands and knees, straddling her body so that his cock was hanging there above her mouth. All she had to do was stuff a pillow under her head and reach up for him with her lips.
"Please suck it, Robyn. I'll give you my next ten dollars. I'll give you whatever you want if you suck it."
Robyn lifted her head and stuffed a pillow under it. Her brother's cock rested warmly against her chin. She let her tongue flick out, wetting the underside of his cock-head. Doug squirmed and breathed faster. She licked again, wetting the slick surface. She could taste cum now and decided it wasn't as bad as she'd imagined. Yet, when she thought of swallowing the stuff as it spurted out, she wasn't sure she'd like it.
"Uhhhmmmnmm!" Doug groaned, shifting around above her so that he could thrust against her lips. Robyn tried to keep him from going into her mouth, but suddenly he took her face between his hands and drove his shaft forward. Her teeth parted and his prick tip glided along her tongue. She choked a little before he pulled back.
"Ghhlluuuuhh!" she gasped, struggling to make him stop.
"God, that's good!" Doug groaned, holding her head even tighter as he pumped his ass. He was fucking her mouth! He rolled to the side, keeping her head firmly clutched to he could plunge his hips and drive his stiff cock in and out between her lips. He had gotten stiff so quickly!
"Nooooo!" she moaned through her nose.
Now that Doug had his cock inside the soft, wet heat of her mouth, he wasn't about to pull it out.
"Suck it, Robyn! Suck it hard!" With a kick, Robyn was able to push her brother away and jerk her lips free of his prick. She glared dawn at him and at his spit-glistening cock. It looked so big now that it was hard again.
"I'm not going to do anything if you act like that!" she scolded.
"I got carried away," Doug said, looking sorrowful. "Look, if I just lie still, will you give me another chance?"
"You sure are hot to have me suck you. I'll bet you want to come in my mouth too, right?"
"How much extra do I get for that?"
Doug shrugged and looked up at her like he needed her licking worse than anything in the world. Robyn couldn't help but feel sorry for him. Besides, the stiff heat of his cock inside her mouth had excited her, even though he'd gotten a bit rough.
"Get on your back, I'm not going to have you grabbing me like that again."
Doug's cock had wilted a little in the interval. Robyn took it between her fingers, amused at the crooked sag of the tip. She began to lick it again, using her tongue on all the tender lumps and bumps. It rose slowly, like a flower stem straightening itself. The head darkened into a pretty blue color and the skin grew taut. Robyn kissed the bulging knob and watched her brother's reaction.
"Yeah, ohhhh, Robyn! Kiss it!"
The next kiss was wetter and longer and she let the tip of her tongue just tickle him the slightest bit. Her poor brother writhed there on his back, his lungs filling and emptying, his eyes getting a glazed look.
"You lick good," he said.
Robyn was remembering just how Julie had done it to her brother that day Robyn had sneaked up the bedroom and peeked in. Julie's small, soft mouth had just rolled around the head of Bud's cock like it was greased. It had looked sexy!
Pursing her lips, Robyn let them suck tightly around the head of Bud's prick. He groaned when she did this. When she started rolling her head slowly, he stopped breathing altogether.
"Mmmmm," Robyn cooed, loving the way his cock-tip slid along the surface of her lips. She hadn't used her tongue this time. She didn't have to. The slick, silky, rub of her mouth against Doug's cock-head was enough to drive her poor brother crazy.
"Goddamn!"
"I take it I'm doing this right?"
"Hell, don't stop to talk!" Doug pleaded.
Robyn fit her mouth against his cock again and began to suck gently, her tongue getting into the act. She let it slide out along the underside of his cock-shaft. When she really stretched, she could reach more than halfway back along his length. Doug began to roll his hips, rubbing his ass around on the bed while she sucked him.
Robyn held his shaft firmly in one hand while her fingers tangled in his balls. She could feel each separate egg, so slick in that wrinkled sac. They were full of cum and it gave Robyn a thrill to know that it would take only a little more sucking to have all that jizz swimming around in her mouth.
"Glluuhhhh," she breathed, letting her lips slide down over his cock-head completely. She sucked him deeper, bobbing her head down so that she could feel him touch the roof of her mouth. Her spit leaked down his shaft. Her tongue flicked excitedly against the blood-engorged prick she was eating.
"God, Robyn, don't stop now! Ohhh, use your tongue again! Yeah… like that!"
Robyn had never realized just how exciting it could be to suck a cock. To know it was her brother's throbbing prick that was pressing against the roof of her mouth made her tremble. She ran the tip of her tongue slowly along the underside again, starting at his balls and working her way upward until she was caressing the flared head with the most gentle, teasing strokes.
Poor Doug! He was gasping and squirming around on the bed like she was torturing him. Robyn enjoyed being the torturer. She knew a man must enjoy doing that to a girl too! To watch her writhe in an agony of pleasure. Like Doug was writhing from the slippery lick of her hot tongue.
"Mmmmmmuuhh," she sighed, feeling how hard he was. His cock had grown so rigid that it was almost like a flesh-covered bone. His cock-head was still spongy when she pressed the tip of her tongue into it, but underneath it, too, was hard. She licked noisily, sliding her lips to that fat head and see-sawing her jaw. She even let her teeth cut into the tender, plump meat. Doug lifted his ass off the bed and trembled.
He thrust up and down, trying to drive his cock deeper into the softness of her mouth. Robyn pulled back every time he did this, teasing him into more frantic spasms. Doug grabbed for her head, but she pushed his hands away and pulled her lips off of his cock so that only the flat of her tongue pressed against his hard-on.
Doug knew he had to let her have complete control. He lay there like a whipped puppy while Robyn returned to a slow, gentle sucking of his cock. Her lips rode up and down his prick-shaft very lightly now. Her tongue just barely touched him. She knew it must feel like a fluttering of butterfly wings.
"Ohhhhh! Uhhhhh!" Doug gasped. He was shaking all over. He looked tense and his belly was sucked in tight under his ribs.
"Mhhhmmmmm!" Robyn moaned through flared nostrils. The sweet suck of her mouth was sloppy and hot and she knew her brother was about to come. Was she going to drink his cum? Yes, she decided that she was.
"Here it comes!" Doug groaned, shuddering as her tongue pulled his cock into a jerking, quivering spasm. His hands went to her head, but he didn't try to grab her. He just petted the sides of her face while she worked over him, the spit dripping from the corners of her mouth. The sound of her sucking was louder than ever.
Robyn tasted something salty and rubbed her tongue across his tip. A tiny droplet had formed there, then another. Next came the spurting. It was powerful, sending the hot strings of cum into her throat. She gulped hard, her tongue pulling along the underside of Doug's cock, milking him for more.
Doug came with loud sighs, his chest heaving, his knees bent back as he wiggled on the bed while his sister sucked hungrily at his hard cock. Robyn had enjoyed it all up to now, but the taste of Doug's fresh cum excited her more than she'd thought it would. Her pussy was throbbing like the stuff was being spurted inside her. She almost wished she could climb up over him and stick that jerking stiff cock into her pussy.
"Yhhuuuhhmmm," she murmured, sucking hard.
"Oohhh, Robyn!"
Robyn grasped her brother's cock with both hands so she could roll her mouth around the head again. Her lips made loud, sucking sounds as cum kept spurting and joined with her spit to make everything slick and sloppy. She could feel the rivulets of jism sliding down her chin and neck. She could taste his cum in the back of her throat. She could smell him too. She could smell the sharp, sour aroma of his spilled cum and was wild for it.
"Robyn, God!"
He was still coming! How much more could he possibly squirt into her sucking mouth? Robyn was faint from pulling at him. Her tongue was coated and it felt as if even her tits were smeared with the white glaze that was still dripping from her chin.
"Ahhhh!" Doug gasped, shuddering as if the final spasms had jolted through him. For a moment more, Robyn kept her mouth gently around him. She was trembling with lust now. She felt more depraved and incestuous than ever. She'd just sucked her brother's cock and enjoyed every moment of it.
Taking her time, Robyn eased her lips away. She ran the tip of her pink tongue across her cummy upper lip and rubbed a hand across her tits, smearing the strings of cum that had fallen there. She was glad her parents couldn't see her now.